I've read that it should be possible to push the SE/30 to its maximum RAM capacity with eight pieces of 16 MByte, 30-Pin SIMMs. I've never seen such a machine in the wild. Neither with 64 or 80 MB. ...

I have had two Macs, a 512K and a Plus, in storage since they failed the smoke test in a spectacular manner a few years back. I have finally learned how to solder and de-solder, so I think its time to ...

What AppleTalk adapters can bridge LocalTalk to Ethernet? There are some adapter that allow LocalTalk printers to show up on ethernet, but I want to allow computers to talk. My IIgs has LocalTalk but ...

When I save a file it has a 'Created At' and 'Updated At' Value saved as well. I would like to know HOW these values are saved? Are they saved as an integer representing a number of seconds since 1904?...

I got BMOW's floppy emulator and have been pulling a bunch of files from 30 year old floppies (which have a miraculously low rate of failure) onto my SD card. One of the things I wanted to copy was a ...

The first Apple PowerBook laptops were delivered in 3 versions in 1991: PowerBook 100, 140, and 170. These initial PowerBooks were overall a tremendous commercial success for Apple, and are regarded ...

My recently restored Mac SE/30 has System 7.0 running on it at present, booting from an original SCSI HDD. I’m missing a few key features, like disk image mounting, which I understand were added in ...

This question is about the Macintosh 128k, but if you can give an answer which describes one of the other very similar machines, that's good too.
The bitmap was 512 by 384 pixels. Assuming that one ...

In case you have never seen it, 1991's Hellcats was a seminal release on the Mac. It ran at full 8-bit color and could, on a newish machine, drive three 1024x768 screens at the same time. Nothing on ...

I have a Macintosh SE/30 with a formatted Disk. I'd like to install the latest System 7 on it that will run. According to Wikipedia that should be 7.5.5. According to several sources Apple has made it ...

Back when Mac OS was called "System" and preemptive multitasking was a distant fantasy, I had a small collection of Macintosh programming books.
For the life of me, though, I can't remember what one ...

The Lisa was a fairly impressive platform for the day. In comparison to the original Macintosh, the two did have different displays and aspect ratios but the Lisa also had additional hardware such as ...

While digging through a classic Mac 68k disassembly I got to the point where I need to know more about the "Boot Globals" residing in lowmem's system global variables.
BootGlobPtr lives at $DDC, that'...

I have a Macintosh Performa 200 and I’m trying to get it working again. It powers on normally and then it brings up the normal Mac OS screen but the mouse and keyboard don't work. Yesterday they were ...

I'm learning about IDEs and software development on Mac OS Classic systems and recently discovered Macintosh Programmer's Workshop. Navigating to a cached version of the old MPW Tools page on Apple's ...

Apple created a dynamic binary translator called Rosetta and bundled it into their OS X operating system. As of OS 10.7, however, Rosetta was removed, and PowerPC applications are no longer supported ...

Which capacitors should be inspected and, if necessary, replaced before attempting to power up an original Mac (purchased January 1984, but "upgraded" to a 512Ke) that has been sitting unused for a ...

I just received a Performa 476 and was shocked at the amount of rust in the computer. I believe it literally sat underwater for some time. The motherboard looks like it can be salvaged but the power ...

The Macintosh, ST, and Amiga were all 68000 CPU systems released in 1984-85, along with their respective new Operating Systems. While this was 5 years before protected mode became commonplace on Intel ...

I have an old Apple IIc (not Plus) and an old Macintosh Plus (1MB RAM). I want to buy an external 3.5 inch floppy drive that works on both machines, that way I don't need two different drives around ...

I have been trying to work out how to open a Mac SE/30, in order to have a better look at its internal condition. I have the repair manual, and in the "Take Apart" section it references a "pull-apart ...

This probably nearly belongs on Skeptics.SE but here goes.
Within the last few years I've become an Apple convert for the most part, which occasionally brings me into (usually) good natured conflict ...

I feel like I used to know the answer to this...
In classic Mac days, probably the early 90s and before, some applications would have a cursive / decorative ƒ character in their names.
What was the ...

I've got this Apple to VGA adapter. I cannot remember what model this is for: it has got a male DB-15 pin connector at one side, and female DE-15 connector at the other side.
As you can see, it has ...

I have a PowerBook 140 that — apart from a dead screen requiring the inevitable capacitor replacement — seems to work well. It has no battery, though, and any available battery will likely have 25+ ...